APA (7th ed.) Citation

Piekutowska, A., & Wrońska, I. (2015). Ten years of the Visegrad Group member states in the European Union. Oficyna Wydawnicza Aspra.

Chicago Style (17th ed.) Citation

Piekutowska, Agnieszka, and Iwona Wrońska. Ten Years of the Visegrad Group Member States in the European Union. Warsaw: Oficyna Wydawnicza Aspra, 2015.

MLA (9th ed.) Citation

Piekutowska, Agnieszka, and Iwona Wrońska. Ten Years of the Visegrad Group Member States in the European Union. Oficyna Wydawnicza Aspra, 2015.